body {
  padding: 50px;
  font: 14px "Lucida Grande", Helvetica, Arial, sans-serif;
}

a {
  color: #00B7FF;
  text-decoration: none;
}

.tab{
  width: 400px;
}
table{
  width: 100%;
  border-top: 1px solid #000;
  border-left: 1px solid #000;
}
th,td{
  border-right: 1px solid #000;
  border-bottom: 1px solid #000;
}
th{
  height: 40px;
}
td{
  height: 30px;
  text-align: center;
}

.btn-add{
  float: right;
  display: block;
  width: 88px;
  height: 30px;
  text-align: center;
  line-height: 30px;
  background: #00a2ff;
  color: #fff;
  margin-bottom: 10px;
}
.btn-del,
.btn-edit{
  display: inline-block;
  width: 50px;
  height: 20px;
  text-align: center;
  line-height: 20px;
  background: #00a2ff;
  color: #fff;
}